Battery Park is a 25 acre (10 hectare) public park located at the Battery, the southern tip of Manhattan Island in New York City, facing New York Harbor. The Battery is named for artillery batteries that were positioned there in the city’s early years to protect the settlement behind them. At the north end of the park is Castle Clinton, the often re-purposed last remnant of the defensive works that inspired the name of the park; Pier A, formerly a fireboat station; and Hope Garden, a memorial to AIDS victims. At the other end is Battery Gardens restaurant, next to the United States Coast Guard Battery Building. Along the waterfront, Statue Cruises offers ferries to the Statue of Liberty and Ellis Island. The park is also the site of the East Coast Memorial which commemorates U.S. servicemen who died in coastal waters of the western Atlantic Ocean during World War II, and several other memorials.